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Radiant|Lab Grown|IGI

0.74ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG687598751

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG687598751

Diamond specifications and retailer prices

From £101 GBP
$135 USD
As of October 28, 2026
Save £248 GBP (71%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £349 GBP at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 0.74ct lab-grown radiant diamond

This 0.74ct lab-grown radiant sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG687598751 or 687598751. Listed at 8 retailers as of October 28, 2026, with prices from £101 to £349, a £248 spread on the same certified stone. NZ Jewellers lists it at £349. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.74
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.7°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687598751
Dimensions6.42 × 4.39 × 2.96 mm
L/W Ratio1.46
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.42 mm4.39 mm0.74 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687598751
Side View
Table 64.0%Crown 44.7°Girdle: STK-THKPavilion 34.5°Culet: NoneDepth 67.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £349 GBP|Low: £101 GBP|High: £458 GBP|Avg: £246 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 11£101 GBP
Retailer 6£116 GBP
Retailer 10£125 GBP
Retailer 12£163 GBP
Retailer 5£181 GBP
Retailer 8£212 GBP
Retailer 2£221 GBP
Retailer 9£236 GBP
Retailer 3£259 GBP
Retailer 7£287 GBP
NZ Jewellers£349 GBP
Retailer 13£432 GBP
Retailer 4£458 GBP

2 data points across 13 retailers

8 retailers£101 GBP to £349 GBP

A
Cheapest Retailer
-
£101 GBP
$135 USD
A
Retailer 2
-
£116 GBP
$154 USD
View
A
Retailer 3
-
£125 GBP
HK$1,300 HKD
View
A
Retailer 4
-
£212 GBP
$282 USD
View
A
Retailer 5
-
£221 GBP
View
A
Retailer 6
-
£236 GBP
View
B+
Retailer 7
-
£287 GBP
$382 USD
View
Most Expensive
B+
NZ Jewellers
4acffc81-e511-4ffa-a3a3-42defae7f344 · Oct 28
£349 GBP
$465 USD
View
7 more retailers have this diamond
Prices start from £101 GBPSave up to £248 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.74ct Radiant
£101 GBP